Displaying images in a JESS GUI

[Manu]

Hi everyone

i have some problems displaying a jpg in a jess GUI.
i created a frame like this:

(bind ?*frame* (new JFrame ""))
(set ?*frame* background (new Color 192 192 192))
(call ?*frame* setResizable TRUE)
(call ?*frame* setLocation 700 300)
(set (?*frame* getContentPane) preferredSize (new Dimension 256 256))
(set (?*frame* getContentPane) layout (new FlowLayout))
(?*frame* validate)
(?*frame* pack)
(?*frame* show))

can anybody help me to get a jpg into this...?

[Jeff Albertson]

You may have better luck posting to a "JESS" forum. I've never heard of it.

[Manu]

do you know any jess forum?

[Jeff Albertson]

After a quick google, I see that JESS was written by Javaranch bartender and regular, Ernest Friedman-Hill, so I'd expect he'll see this thread soon. Until then, that same quick google found the JESS home page, which includes a wiki: http://herzberg.ca.sandia.gov/jess/

[John Wetherbie]

M.K.,

Please review the JavaRanch naming policy and update your user name. I'll get hold of Ernest and see where he thinks this question can best be answered.

[Ernest Friedman-Hill]

All you need to know is how to do it in Java -- then you simply do the same thing, only in Jess syntax. One convenient way to display a picture in a Swing GUI is using a JLabel with an ImageIcon in it, like this:

frame.getContentPane().add(new JLabel(new ImageIcon("foo.jpg")));

If you do this before you "pack" the frame, then the image will show up correctly right away. In Jess, this would look like

((?*frame* getContentPane) add (new JLabel (new ImageIcon "foo.jpg")))

Regarding Jess forums: I often answer Jess questions in the "Other Java Products and Servers" forum here at the Ranch, but the most active venue for Jess questions is the jess-users mailing list. See here for information about that.

[Manu]

Please review the JavaRanch naming policy and update your user name.

sorry about this...

All you need to know is how to do it in Java

i just begann java/jess programmin so somebody told me how to do it in java. unfortunately it was not the correct way, so i couldn't success in jess :-(

If you do this before you "pack" the frame, then the image will show up correctly right away. In Jess, this would look like

i did as you told me, but the only thing i get, is an empty window, the jpg is missing. does it matter in which directory the picture is saved?

[Ernest Friedman-Hill]

Originally posted by Manu:

does it matter in which directory the picture is saved?

Where I wrote "foo.jpg", you'd have to write the path (absolute, or relative to the current directory) of an actual JPEG file. If you include directories in your path, be sure to use "/", not "\", as separator characters.

Sorry to have to say this, but the naming policy requires two names: "Manu Smith", for example, would be valid.

[Manu]

Originally posted by Ernest Friedman-Hill:


Where I wrote "foo.jpg", you'd have to write the path (absolute, or relative to the current directory) of an actual JPEG file. If you include directories in your path, be sure to use "/", not "\", as separator characters.]

SUCCESS!!! THANK YOU!!!

Sorry to have to say this, but the naming policy requires two names: "Manu Smith", for example, would be valid.

ay caramba

[John Wetherbie]

"Manu",

As Ernest points out we are a picky lot about the naming policy. Don't let it scare you away, though...